Sharpening device



March 9, 1937. F. w. THOM 2,072,970

SHARPENING DEVICE ,Filed March 30, 1936 2 Sheets-Sheet 1 liif I Elven/Z07 March 9,1937. ;w TQQM j 2,072,970

SHARPENING DEVICE Filed'Marqh 30, 1936 2 Sheets-Shed 2 fizven/ior M A Ziorneli Patented Mar. 9, 1937 "UNITED STATEg A ENT OFFICE- f Fredrick W. Thom, St. Paul, Minn.

Application March so, 1936, Serial No. 71,605

5 Claims.

The present invention relates to an improved device for holding a butchers steel to facilitate the handling of the steel in a sharpening operation.

The invention comprises means for adjustably holding the steel and permitting the holding device being conveniently and easily handled by the operator in holding the steel against the sharpening instrument, as an emery wheel.

This and other features of the invention will be more specifically set forth in the following description and the accompanying drawings, wherein:

t Figure 1 is a plan view of one form of :the inven- Figure 2 is a view in side elevation of the invention, shown partly in section.

Figure 3 is an end view of the invention Figure 4 is a side view of a modified form of holder.

Figure 5 is a sectional view on line 55 of Figure 4.

Figure 6 is a plan view showing a modified form of the invention.

Figure 7 is a sectional view on line of Figure 6; and

Figure 8 is a partial sectional view on line 8-8 of Figure 6.

Referring to the drawings in detail, in the form shown in Figures 1 to 3, a frame is provided consisting of side bars or rods 2 anchored in the ends of a cross bar 3. A handle 4 is supported by the cross bar 3, said cross bar and handle forming one end of the frame. Upon the opposite ends of the rods is slidably supported a cross bar 5, the cross bar at its ends being formed with bends 6, the rods 2 slidably extending through openings in said bends. Thumb screws 1 are threaded through said bends and are adjustable to engage with the ends and to hold the cross bar 5 in adjusted position upon the rods. The cross bar 5 on its outer side supports a handle 8.

For the purpose of supporting the steel 9, the cross bar 3 is bowed downwardly, as shown in Figure 3, and centrally supports a socket ID, to which is connected a communicating grease-cup l l. The socket [0 may, as shown in Figure 2, be interiorly provided with an anti-friction ball bearing l2, or, as has been found by experience, this ball bearing may be dispensed with and the functioning with respect to the supported steel secured by the grease fed into the socket from the grease cup. The cross bar 5 on its inner side centrally supports a socket l3 to receive one end of the steel, while the socket 10 supports the other end.

By having both the cross bars 3 and 5 bowed downwardly toward the center, the steel, as shown in Figure 2, will stand below the rods so that the rods will not interfere with the use of the device in a sharpening operation. v i I In the modification shown in Figures 4 and 5 a single rod I4 is provided, one end l5 of the rod being bent outwardly and supporting a socket member 16 and connected grease cup II. An arm I8 is slidably supported upon the outer ends of the rod I4 and formed at its free end with a socket portion to receive one end of the steel, while the socket member I6 supports the other end, the arm l8 being held in adjusted positions upon the rod M by the thumb screw l9.

In the construction shown in Figures 6 to 8, inclusive, the construction of Figure 1 is modified to permit the steel being held without removal of the handle. As shown in Figure 6, the cross bar 3 supports a socket member 20 within which is rotatably mounted the collar 2 I, an anti-friction bearing 22 being interposed between the collar and the socket member.

The central opening through the socket member and collar registers with the corresponding opening through the cross bar 3. The steel may thus be shoved through the socket member and collar to bring the point of the steel into the hearing l3, as shown in dotted lines in Figure 6, without removing the handle of the steel. The steel is then secured in position by thumb screws 23 passing through the collar in contact with the steel.

' In use of the device, the handle of the steel may, if desired, be used in substitution for the handle 4 in grasping the end of the apparatus.

In operation, the steel is clamped in the frame, as shown in the drawings, between the fixed end of the frame and the adjustable end.

The steel freely rotates within the receiving sockets as the frame is manipulated to hold the steel against the sharpening device, as an emery wheel.

In the form shown in Figure l, the frame in use is grasped by the end handles and in the form shown in Figure 4 grasped beyond the supported ends of the steel in a sharpening operation. In both forms the steel, as shown, is supported in an offset and parallel position with reference to the bar so as to be held against the sharpening wheel without the bars interfering with the sharpening operation.

I claim:

1. A device for supporting a sharpening steel for the purpose set forth, comprising a frame including a longitudinal bar, a socket member for one end of the steel supported by one end of the bar in offset position, an opposed slidable member supported by the bar and carrying a socket member for the other end of the steel in an offset position to the bar corresponding to the offset position of the opposed socket member.

2. A holding device of the class described for a butchers steel, comprising a frame including a longitudinal bar, a bearing socket for one end of the steel adjustably supported at one end of the bar in ofiset. relationship thereto, and an antifriction bearing member for said steel supported at the other end of the bar in offset relation to the bar, for the purpose set forth.

3. A holding device of the class described for a butchers steel, comprising a frame including a longitudinal bar, a bearing socket for one end of the steel adjustably supportedyat one end of the bar in offset relationship thereto, an anti-friction bearing member for said steel supported at the other end of the bar in offset relation to the bar, and a grease cup having communication in connection with said anti-friction bearing, for the purpose set forth.

4. A device of the class described for removably supporting a butchers steel, comprising a longitudinally extended frame, a member adjustably supported by one end of said frame and carrying a socket bearing in offset relationship to said frame to receive the outer end of said steel, an offset anti-friction bearing carried by the opposite end of said frame for receiving the handle end of said steel, handle means carried by the opposite ends of said frame, and means adjustably securing said steel in position in said bearings.

5. A device of the class described for removably supporting a butchers steel, comprising a longitudinally extended frame, a member supported by one end of said frame and carrying a socket bearing in offset relationship to said frame to receive the outer end of said steel, an offset antifriction bearing carried by the opposite end of said frame for receiving the handle end of said steel, handle means carried by the opposite ends of said frame, means adjustably securing said steel in position in said bearings, and lubricating means for said anti-friction bearing.

FREDRICK W. THC 

